LT1055 Datasheet, PDF (11/12 Pages) Linear Technology – Precision, High Speed, JFET Input Operational Amplifiers

LT1055/LT1056
TYPICAL APPLICATIONS
100kHz Voltage Controlled Oscillator
*1% FILM RESISTOR
=1N4148
FREQUENCY LINEARITY = 0.1%
FREQUENCY STABILITY = 150ppm/°C
SETTLING TIME = 1.7µs
DISTORTION = 0.25% AT 100kHz,
0.07% AT 10zHz
15V
2_– 7
LT1056
6
X1
+V
22.1k
3₊
4.5k
4
X2
CC
U1
W
–15V
U2 AD639 Z1
1k
COM
Z2
+15V
SINE OUT
2V_RMS
0kHs TO 100kHs
0V TO 10V
INPUT
15V
FINE
100kHz
DISTORTION
TRIM
9.09k* 2k
50k
10Hz
DISTORTION
TRIM
–15V
22M
POLYSTYRENE
DISTORTION
TRIMS
500pF
15pF
15V
68k
VR
Y1
10k
Y2
68k
5k
FREQUENCY
–15V
TRIM
10k* _{2 –}
7
LT1056
3₊
4
–15V
6 2N4391 2N4391 ^5k*
2N4391
2.5k*
2_–
15V
7
LT1056
3₊
4
–15V
6 ^22k
HP5082-
2810
15V
10k*
2₊
8
7
LT1011
3_–
1
4
1k
1k
20pF
10k
–15V
0.01µF
GT
UP
–V
–15
10k
LM329
4.7k
4.7k
–15V
15V
12-Bit Voltage Output D/A Converter
12-BIT CURRENT OUTPUT D/A
CONVERTER (e.g., 6012,565
OR DAC-80)
0 TO 2
OR 4mA
C_F = 15pF TO 33pF
SETTLING TIME TO 2mV
(0.8 LSB) = 1.5µs TO 2µs
C_F
2_–
15V
7
6
LT1056
3₊
OUTPUT
4 _{0V TO 10V}
–15V
LT1055/56 TA09
INPUT
±120V Output Precision Op Amp
125V
±25mA OUTPUT
10k
HEAT SINK OUTPUT
TRANSISTORS
1µF
510Ω 330Ω
1N965
2N5415
100pF
10k
50k
1M _2N2222
1k
2_–
7
6
10k
LT1055
3₊
4
1N4148
1N4148
1k
50k
1M 2N2907
LT1055/56 TA08
2N3440
27Ω
27Ω
1N965
2N3440
10k
510Ω
330Ω
2N5415
OUTPUT
100k
33pF
1µF
–125V
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
LT1055/56 TA10
11